ION CONDUCTIVE POLYMERIC COMPOSITE MEMBRANE, MEMBRANE ELECTRODE ASSEMBLY, FUEL CELL, AND METHOD OF PRODUCING ION CONDUCTIVE POLYMERIC COMPOSITE MEMBRANE

• Main Authors: KUMAGAI MAMIKO, YAMAUCHI KAZUHIRO, KUMAGAI KYOKO, KAKEGAWA NORISHIGE, YAMADA KENJI
• Format: Patent
• Language: English
• Published: 04.02.2010
• Subjects: BASIC ELECTRIC ELEMENTS; CABLES; CHEMISTRY; COMPOUNDS THEREOF; CONDUCTORS; ELECTRICITY; INORGANIC CHEMISTRY; INSULATORS; METALLURGY; NON-METALLIC ELEMENTS; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING ORDIELECTRIC PROPERTIES

PROBLEM TO BE SOLVED: To provide an ion conductive polymer composite membrane that strikes a balance between the high gas barrier property and the high protonic conductivity, to provide a membrane electrode assembly and a fuel cell using the ion conductive polymer composite membrane, and to provide a method of producing the ion conductive polymeric composite membrane. SOLUTION: The ion conductive polymer composite membrane includes an ion conductive polymer and an ion conductive structure, wherein the ion conductive structure includes: an inorganic layered structure including a plurality of layers formed of an inorganic compound; and a sulfobetaine type or hydroxysulfobetaine type ampholytic surfactant, and the ampholytic surfactant is present between the layers formed of the inorganic compound. COPYRIGHT: (C)2010,JPO&INPIT